foodsoft/plugins/links/app/controllers/links_controller.rb

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require 'net/http'
class LinksController < ApplicationController
def show
link = Link.find(params[:id])
url = link.url
if link.workgroup && !current_user.role_admin? && !link.workgroup.member?(current_user)
return deny_access
end
if link.indirect
uri = URI.parse url
request = Net::HTTP::Get.new uri
request['Authorization'] = link.authorization if link.authorization
result = Net::HTTP.start uri.host, uri.port, use_ssl: uri.scheme == 'https' do |http|
http.request request
end
url = result.header['Location']
unless url
return redirect_to root_url, alert: t('.indirect_no_location')
end
end
redirect_to url, status: 302
end
end